CN114653711A - Fuel transmission device of thermal power plant - Google Patents
Fuel transmission device of thermal power plant Download PDFInfo
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- CN114653711A CN114653711A CN202210243015.5A CN202210243015A CN114653711A CN 114653711 A CN114653711 A CN 114653711A CN 202210243015 A CN202210243015 A CN 202210243015A CN 114653711 A CN114653711 A CN 114653711A
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- Prior art keywords
- air
- coal
- dust
- suction
- air guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2200/00—Pretreatment and supply of solid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses a fuel conveying device of a thermal power plant, which comprises a coal block conveying belt, wherein a dust absorption purification cover is fixedly arranged on the top surface of the coal block conveying belt, a coal powder conveying belt is fixedly arranged at the discharge end of the coal block conveying belt, a coal mill communicated with the discharge end of the coal block conveying belt is fixedly arranged on the left side of the top surface of the coal powder conveying belt, and a dust suppressor communicated with the output end of the dust absorption purification cover is fixedly arranged on the top of the coal mill. In the scheme, the dust suction and purification cover is matched with the dust suppressor to form a set of suction dust suppression system communicated with a blast system of a boiler, in the working process of the device, a first air guide cover body is matched with a first suction air hopper and a first suction fan to suck and guide smoke dust generated in the process of conveying a conveying belt and conveying coal blocks into a confluence air box, and then a third suction fan is matched with the confluence air box to synchronously guide coal dust generated in the coal grinding process of a coal mill into the blast system of the boiler, so that the recycling of coal dust is realized, and the potential safety hazard caused by the scattered coal dust is solved.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a fuel transmission device of a thermal power plant.
Background
Thermal power generation is generally a general term of a mode of heating water by using heat energy generated when combustible materials are combusted so that the water is changed into high-temperature and high-pressure steam, and then a generator is driven by the steam to generate electricity, and the thermal power generation is purely powered and not only generates electricity but also supplies heat according to the action of the thermal power generation; generating power by a steam turbine, a gas turbine and a diesel engine according to a prime mover; according to the used fuel, mainly including coal-fired power generation, fuel oil power generation and gas power generation; all power plants taking combustible materials as fuel are collectively called as thermal power plants, and because of abundant coal resources in China, coal-fired thermal power generating units are widely applied to the thermal power plants.
The main equipment system of the thermal power plant comprises: the fuel supply system is composed of a multi-stage conveyor belt series crusher, a screening machine and a coal mill, fuel coal blocks are sequentially conveyed to the crusher, the screening machine and the coal mill through the multi-stage conveyor belt in the working process of the fuel supply system, the coal blocks are converted into coal powder and then conveyed to a boiler uniformly, and part of the coal powder is scattered in the air in the conveying process of the coal powder, so that the potential safety hazard of dust explosion exists, and the waste of coal powder resources is also caused.
Disclosure of Invention
In order to overcome the above defects in the prior art, an embodiment of the present invention provides a fuel conveying device for a thermal power plant, so as to solve the problem that, in the process of conveying pulverized coal by a multi-stage conveyor belt in the existing fuel supply system, part of the pulverized coal is scattered in the air, which not only has the potential safety hazard of dust explosion, but also causes the waste of pulverized coal resources.
In order to achieve the purpose, the invention provides the following technical scheme:
a fuel conveying device of a thermal power plant comprises a coal block conveying belt, wherein a dust collection purification cover is fixedly mounted on the top surface of the coal block conveying belt, a coal powder conveying belt is fixedly mounted at the discharge end of the coal block conveying belt, a coal mill communicated with the discharge end of the coal block conveying belt is fixedly mounted on the left side of the top surface of the coal powder conveying belt, a dust suppressor communicated with the output end of the dust collection purification cover is fixedly mounted at the top of the coal mill, a circulating water tank is fixedly mounted in the middle of the bottom surface of the coal powder conveying belt, a circulating dust suppression cover positioned on the top surface of the coal powder conveying belt is fixedly mounted on the right side of the coal mill, and a water mist dust suppressor communicated with the circulating water tank is fixedly mounted at the joint of the circulating dust suppression cover and the coal powder conveying belt;
the dust collection purification cover comprises a first air guide cover body, a first suction fan is fixedly installed on the right side of the top of the first air guide cover body, a first air guide pipe is fixedly installed at an air outlet of the first suction fan, and a first suction air hopper is fixedly installed at an air inlet of the first suction fan;
the dust suppressor comprises a confluence air box, a suction fan III is fixedly installed at an air inlet on the right side of the confluence air box, an air guide interface is fixedly installed at an air outlet of the confluence air box, and the air guide interface is matched with an external air guide hose;
the circulating water tank comprises a water storage tank body, air inlet valve ports are mounted on two sides of the water storage tank body in an embedded mode, and a built-in circulating pump is arranged in the water outlet end of the water storage tank body;
the circulating dust suppression cover comprises a second air guide cover body, a second suction fan is fixedly installed on the right side of the top surface of the second air guide cover body, air outlets on two sides of the second suction fan are fixedly communicated with a second air guide pipe, and a second suction air hopper is fixedly installed at an air inlet of the second suction fan;
the water mist dust suppressor comprises a three-way flow dividing pipe, water outlets at two ends of the three-way flow dividing pipe are fixedly communicated with a plurality of porous flow dividing pipes, and a plurality of atomizers are installed on the inner side surfaces of the two porous flow dividing pipes in an embedded mode.
Preferably, the coal conveying belt comprises a first conveying rack, first supporting legs are fixedly mounted on the left side and the right side of the bottom surface of the first conveying rack, and a first conveying belt is fixedly mounted inside the conveying trough on the top surface of the first conveying rack.
Preferably, the first air guide cover body is fixedly installed on the top surface of the first conveying rack, the first suction air hopper is fixedly hung on the blanking side of the first conveying belt through the first air guide cover body, and the first suction air hopper is communicated with the first air guide pipe through the first suction fan.
Preferably, both sides of the flow converging air box are provided with suction ports, and the suction port on the right side of the flow converging air box is communicated with a grinding chamber of the coal mill through the suction fan III.
Preferably, a suction port on the left side of the confluence air box is communicated with an output end of the suction fan I through the first air guide pipe, and an air outlet of the confluence air box is communicated with a blast system of the boiler through the air guide interface and an external air guide hose adapted to the air guide interface.
Preferably, the pulverized coal conveyor belt comprises a second conveyor frame, a second conveying belt is fixedly mounted inside the conveying trough on the top surface of the second conveyor frame, and second supporting legs are fixedly mounted on the left side and the right side of the bottom surface of the second conveyor frame.
Preferably, the air guide cover body II is fixedly installed on the right half part of the top surface of the conveying rack II, the suction air hopper II is suspended on the discharging side of the conveying belt II through the air guide cover body II, and the suction air hopper II is communicated with the inner cavity of the water storage box body through the suction fan II matched with the two air guide pipes II.
Preferably, a U-shaped water guide pipe formed by the three-way flow dividing pipe and the two porous flow dividing pipes is fixedly installed at the joint of the second conveying rack and the second air guide cover body, a water inlet pipe of the three-way flow dividing pipe is communicated with a water outlet of the built-in circulating pump, and water outlet nozzles of the two multi-port atomizers are arranged towards the top surface of the second conveying belt.
Compared with the prior art, the invention at least has the following beneficial technical effects:
in the scheme, the dust absorption purification cover is matched with the dust suppressor to form a set of suction dust suppression system communicated with a blast system of a boiler, in the working process, the air guide cover body is matched with the first suction air hopper and the first suction fan to suck and guide smoke dust generated in the process of conveying a conveying belt and conveying coal blocks into the confluence air box, and the three suction fans are matched with the confluence air box to synchronously guide coal dust generated in the coal grinding process of a coal mill into the blast system of the boiler, so that the recycling of coal dust is realized, and the potential safety hazard caused by the scattered coal dust is solved.
The circulating water tank and the circulating dust suppression cover are combined to form a set of washing dust suppression system, in the working process, the second suction fan is matched with the second air guide cover body and the second suction air hopper to intensively suck raised dust generated in the process of conveying the second conveying belt conveying coal powder, and then the concentrated coal powder is guided into the inner cavity of the water storage box body through the matching of the two second air guide pipes and the two air inlet valve ports, so that the coal powder is mixed into a water body in the inner cavity of the water storage box body, and potential safety hazards caused by coal powder loss are avoided.
The circulating water tank and the water mist dust suppressor are combined to form a set of circulating water mist dust suppression system, and in the working process, a U-shaped water guide pipe formed by a built-in circulating pump matched with a three-way flow distribution pipe and two porous flow distribution pipes uniformly sprays water mixed with coal dust in an inner cavity of a water storage tank body onto the surface of the coal dust conveyed in a centralized mode through atomizing nozzles of two multi-port atomizers, so that the generation of coal dust is suppressed, and the problems of coal dust resource waste, dust explosion and the like are avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a pulverized coal conveyor belt according to the present invention;
FIG. 3 is a schematic view of the dust-absorbing and purifying cover of the present invention;
FIG. 4 is a schematic view of the dust suppression apparatus of the present invention;
FIG. 5 is a schematic view of the circulating dust suppressing cover according to the present invention;
FIG. 6 is a schematic view of the structure of the circulation tank of the present invention;
FIG. 7 is a schematic view of the structure of the water mist dust suppressor of the present invention.
The reference signs are: 1. a coal block conveyor belt; 2. a dust-collecting purification cover; 3. a pulverized coal conveyor belt; 4. a coal mill; 5. a dust suppressor; 6. a circulating water tank; 7. a circulating dust suppression cover; 8. a water mist dust suppressor; 11. a first conveying rack; 12. a first support leg; 13. a first material conveying belt; 21. a first air guide cover body; 22. a first suction fan; 23. a first air guide pipe; 24. a first suction air hopper; 31. a second conveying rack; 32. a second material conveying belt; 33. A second support leg; 51. a confluence air box; 52. a suction fan III; 53. an air guide interface; 61. a water storage tank body; 62. an air inlet valve port; 63. a circulating pump is arranged inside; 71. a second air guide cover body; 72. a second suction fan; 73. a second air guide pipe; 74. a second suction air hopper; 81. a three-way shunt pipe; 82. a porous shunt tube; 83. a multi-port atomizer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a fuel conveying device of a thermal power plant, which comprises a coal conveyor belt 1, wherein a dust collection purification cover 2 is fixedly installed on the top surface of the coal conveyor belt 1, a pulverized coal conveyor belt 3 is fixedly installed at the discharge end of the coal conveyor belt 1, a coal mill 4 communicated with the discharge end of the coal conveyor belt 1 is fixedly installed on the left side of the top surface of the pulverized coal conveyor belt 3, a dust suppressor 5 communicated with the output end of the dust collection purification cover 2 is fixedly installed on the top of the coal mill 4, a circulating water tank 6 is fixedly installed in the middle of the bottom surface of the pulverized coal conveyor belt 3, and a circulating dust suppression cover 7 positioned on the top surface of the pulverized coal conveyor belt 3 is fixedly installed on the right side of the coal mill 4.
As shown in fig. 2, a water mist dust suppressor 8 communicated with the circulating water tank 6 is fixedly installed at the joint of the circulating dust suppression cover 7 and the pulverized coal conveyor belt 3.
As shown in fig. 3, the dust collection and purification cover 2 includes a first air guide cover body 21, a first suction fan 22 is fixedly mounted on the right side of the top of the first air guide cover body 21, a first air guide pipe 23 is fixedly mounted at an air outlet of the first suction fan 22, and a first suction air hopper 24 is fixedly mounted at an air inlet of the first suction fan 22.
As shown in fig. 4, the dust suppressor 5 includes a converging air box 51, a suction fan third 52 is fixedly installed at an air inlet on the right side of the converging air box 51, an air guide interface 53 is fixedly installed at an air outlet of the converging air box 51, and the air guide interface 53 is adapted to an external air guide hose.
As shown in fig. 5 and 6, the circulation water tank 6 includes a water storage tank 61, an air inlet valve port 62 is mounted on both sides of the water storage tank 61 in an embedded manner, and a built-in circulation pump 63 is disposed in a water outlet end of the water storage tank 61. The circulating dust suppression cover 7 comprises a second air guide cover body 71, a second suction fan 72 is fixedly installed on the right side of the top surface of the second air guide cover body 71, air outlets on two sides of the second suction fan 72 are fixedly communicated with a second air guide pipe 73, and an air inlet of the second suction fan 72 is fixedly provided with a second suction air hopper 74.
As shown in fig. 7, the water mist dust suppression device 8 includes a three-way shunt pipe 81, the water outlets at both ends of the three-way shunt pipe 81 are fixedly communicated with porous shunt pipes 82, and the inner side surfaces of the two porous shunt pipes 82 are respectively provided with a multi-port atomizer 83 in an embedded manner.
As shown in fig. 3 and 4, the coal conveyor belt 1 includes a first conveyor frame 11, wherein the left side and the right side of the bottom surface of the first conveyor frame 11 are fixedly provided with a first support leg 12, and a first conveying belt 13 is fixedly arranged inside a conveying trough on the top surface of the first conveyor frame 11; the first air guide cover body 21 is fixedly arranged on the top surface of the first conveying rack 11, the first suction air hopper 24 is fixedly hung on the blanking side of the first conveying belt 13 through the first air guide cover body 21, and the first suction air hopper 24 is communicated with the first air guide pipe 23 through a first suction fan 22; suction ports are arranged on two sides of the confluence air box 51, and the suction port on the right side of the confluence air box 51 is communicated with a grinding chamber of the coal mill 4 through a suction fan III 52; the suction port on the left side of the confluence air box 51 is communicated with the output end of the suction fan I22 through an air guide pipe I23, and the air outlet of the confluence air box 51 is communicated with a blast system of the boiler through an air guide interface 53 and an external air guide hose matched with the air guide interface.
Specifically, the dust collection purification cover 2 is matched with the dust suppressor 5 to form a set of suction dust suppression system communicated with a blast system of a boiler, in the working process of the device, the first air guide cover body 21 is matched with the first suction air hopper 24 and the first suction fan 22 to suck smoke dust generated in the process of conveying the coal blocks by the first conveying belt 13 into the confluence air box 51, and then the third suction fan 52 is matched with the confluence air box 51 to synchronously guide coal dust generated in the coal grinding process of the coal grinding machine 4 into the blast system of the boiler, so that the recovery and reutilization of coal dust are realized, and the potential safety hazard caused by the scattered coal dust is solved.
As shown in fig. 2, 5 and 6, the pulverized coal conveyor belt 3 includes a second conveyor frame 31, a second conveyor belt 32 is fixedly installed inside a second conveyor chute on the top surface of the second conveyor frame 31, and second support legs 33 are fixedly installed on the left side and the right side of the bottom surface of the second conveyor frame 31; the second air guide cover body 71 is fixedly installed on the right half portion of the top face of the second conveying rack 31, the second suction air hopper 74 is suspended on the feeding side of the second conveying belt 32 through the second air guide cover body 71, and the second suction air hopper 74 is communicated with an inner cavity of the water storage box body 61 through a second suction fan 72 in cooperation with the second two air guide pipes 73.
Specifically, circulation tank 6 and circulation restrain the combination of dust cover 7 and constitute one set of washing and press down dirt system, in the device course of operation, utilize two 72 cooperation wind deflector cover bodies and two 71 and two 74 suction wind scoops to carry the second 32 conveying belts to carry the raise dust that the buggy in-process produced and concentrate the suction, the leading-in inner chamber of water storage tank 61 of buggy that rethread two root guide pipes 73 cooperation two inlet valve ports 62 will concentrate, let the buggy sneak into in the water of water storage tank 61 inner chamber, thereby stopped the potential safety hazard that the buggy loss exists.
As shown in fig. 2, 5-7, the U-shaped water guiding pipe formed by the three-way shunt pipe 81 and the two multi-hole shunt pipes 82 is fixedly installed at the joint of the second conveying rack 31 and the second air guiding cover 71, the water inlet pipe of the three-way shunt pipe 81 is communicated with the water outlet of the built-in circulating pump 63, and the water outlet nozzles of the two multi-port atomizers 83 are both arranged facing the top surface of the second conveying belt 32.
Specifically, the circulating water tank 6 and the water mist dust suppressor 8 are combined to form a set of circulating water mist dust suppression system, and in the working process of the device, a built-in circulating pump 63 is matched with a U-shaped water guide pipe formed by a three-way flow dividing pipe 81 and two multi-hole flow dividing pipes 82 to uniformly spray the water mixed with the pulverized coal in the inner cavity of the water storage tank body 61 onto the surface of the pulverized coal conveyed in a centralized mode through atomizing nozzles of the two multi-hole atomizers 83, so that the generation of pulverized coal dust is suppressed, and the problems of pulverized coal resource waste, dust explosion and the like are avoided.
The working process of the embodiment of the invention is as follows:
the dust collection and purification cover 2 is matched with the dust suppressor 5 to form a set of suction dust suppression system communicated with an air blowing system of a boiler, in the working process, the air guide cover body I21 is matched with the suction air hopper I24 and the suction fan I22 to suck and guide smoke dust generated in the coal conveying belt I13 conveying process into the confluence air box 51, and then the suction fan III 52 is matched with the confluence air box 51 to guide coal dust generated in the coal grinding process of the coal grinder 4 into the air blowing system of the boiler synchronously, so that the recycling of coal dust is realized, and the potential safety hazard caused by the scattered coal dust is solved.
The circulating water tank 6 and the circulating dust suppression cover 7 are combined to form a set of water washing dust suppression system, in the working process, the second suction fan 72 is matched with the second air guide cover body 71 and the second suction air hopper 74 to intensively suck raised dust generated in the process of conveying the pulverized coal by the second conveying belt 32, and then the concentrated pulverized coal is guided into the inner cavity of the water storage tank body 61 through the cooperation of the second two air guide pipes 73 and the two air inlet valve ports 62, so that the pulverized coal is mixed into a water body in the inner cavity of the water storage tank body 61, and potential safety hazards caused by pulverized coal loss are avoided.
The circulating water tank 6 and the water mist dust suppression device 8 are combined to form a set of circulating water mist dust suppression system, in the working process, a built-in circulating pump 63 is matched with a U-shaped water guide pipe formed by a three-way flow dividing pipe 81 and two multi-hole flow dividing pipes 82 to uniformly spray the water mixed with the coal dust in the inner cavity of the water storage tank body 61 onto the surface of the coal dust conveyed in a centralized mode through atomizing nozzles of the two multi-hole atomizers 83, so that the generation of coal dust is suppressed, and the problems of coal dust resource waste, dust explosion and the like are avoided.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the invention, only the structures related to the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the invention can be combined mutually under the condition of no conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a fuel transmission device of thermal power plant, includes coal cinder conveyer belt (1), its characterized in that, the top surface fixed mounting of coal cinder conveyer belt (1) has dust absorption purifying hood (2), the discharge end fixed mounting of coal cinder conveyer belt (1) has buggy conveyer belt (3), the left side fixed mounting of buggy conveyer belt (3) top surface have with coal pulverizer (4) that the discharge end of coal cinder conveyer belt (1) is linked together, the top fixed mounting of coal pulverizer (4) have with dust suppression ware (5) that the output of dust absorption purifying hood (2) is linked together, the middle part fixed mounting of buggy conveyer belt (3) bottom surface has circulation water tank (6), the right side fixed mounting of coal pulverizer (4) has and is located the circulation of buggy conveyer belt (3) top surface suppresses dust hood (7), the circulation suppress cover (7) with the junction fixed mounting of buggy conveyer belt (3) have with the water fog that circulation water tank (6) are linked together A dust suppressor (8);
the dust collection purification cover (2) comprises a first air guide cover body (21), a first suction fan (22) is fixedly installed on the right side of the top of the first air guide cover body (21), a first air guide pipe (23) is fixedly installed at an air outlet of the first suction fan (22), and a first suction air hopper (24) is fixedly installed at an air inlet of the first suction fan (22);
the dust suppressor (5) comprises a confluence air box (51), a suction fan III (52) is fixedly mounted at an air inlet on the right side of the confluence air box (51), an air guide interface (53) is fixedly mounted at an air outlet of the confluence air box (51), and the air guide interface (53) is matched with an external air guide hose;
the circulating water tank (6) comprises a water storage tank body (61), air inlet valve ports (62) are mounted on two sides of the water storage tank body (61) in an embedded mode, and a built-in circulating pump (63) is arranged in a water outlet end of the water storage tank body (61);
the circulating dust suppression cover (7) comprises a second air guide cover body (71), a second suction fan (72) is fixedly installed on the right side of the top surface of the second air guide cover body (71), air outlets on two sides of the second suction fan (72) are fixedly communicated with a second air guide pipe (73), and an air inlet of the second suction fan (72) is fixedly provided with a second suction air hopper (74);
the water mist dust suppression device (8) comprises a three-way flow dividing pipe (81), the water outlets at two ends of the three-way flow dividing pipe (81) are fixedly communicated with a plurality of porous flow dividing pipes (82), and a plurality of atomizers (83) are installed on the inner side surfaces of the porous flow dividing pipes (82) in an embedded mode.
2. The fuel conveying device of the thermal power plant as claimed in claim 1, wherein the coal conveyor belt (1) comprises a first conveyor frame (11), the left side and the right side of the bottom surface of the first conveyor frame (11) are fixedly provided with a first supporting leg (12), and the inside of the conveying trough on the top surface of the first conveyor frame (11) is fixedly provided with a first conveying belt (13).
3. The fuel conveying device of the thermal power plant as claimed in claim 2, wherein the first air guiding hood body (21) is fixedly installed on the top surface of the first conveying frame (11), the first suction air hopper (24) is fixedly hung on the blanking side of the first conveying belt (13) through the first air guiding hood body (21), and the first suction air hopper (24) is communicated with the first air guiding pipe (23) through the first suction fan (22).
4. The fuel transfer device of the thermal power plant according to claim 1, characterized in that the confluence air box (51) is provided with suction ports at both sides, and the suction port at the right side of the confluence air box (51) is communicated with the grinding chamber of the coal grinding mill (4) through the suction fan III (52).
5. The fuel conveying device of the thermal power plant as claimed in claim 1, wherein the suction port on the left side of the confluence air box (51) is communicated with the output end of the suction fan I (22) through the first air guide pipe (23), and the air outlet of the confluence air box (51) is communicated with the air blowing system of the boiler through the air guide interface (53) and an external air guide hose adapted to the air guide interface.
6. The fuel conveying device of the thermal power plant as claimed in claim 1, wherein the pulverized coal conveyor belt (3) comprises a second conveyor frame (31), a second conveyor belt (32) is fixedly installed inside the conveying trough on the top surface of the second conveyor frame (31), and second support legs (33) are fixedly installed on the left side and the right side of the bottom surface of the second conveyor frame (31).
7. The fuel conveying device of the thermal power plant as claimed in claim 6, wherein the second air guiding cover (71) is fixedly mounted on the right half portion of the top surface of the second conveyor frame (31), the second suction air hopper (74) is suspended on the blanking side of the second conveyor belt (32) through the second air guiding cover (71), and the second suction air hopper (74) is communicated with the inner cavity of the water storage tank (61) through the second suction fan (72) and two air guiding pipes (73) in a matching manner.
8. The fuel conveying device of the thermal power plant as claimed in claim 6, wherein the U-shaped water guide pipe formed by the three-way shunt pipe (81) and the two multi-hole shunt pipes (82) is fixedly installed at the joint of the second conveying rack (31) and the second air guide cover body (71), the water inlet pipe of the three-way shunt pipe (81) is communicated with the water outlet of the built-in circulating pump (63), and the water outlet nozzles of the two multi-port atomizers (83) are both arranged towards the top surface of the second conveying belt (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN215416355U (en) * | 2021-04-06 | 2022-01-04 | 南京信息工程大学 | Control system of coal mine conveying system |
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| US6165283A (en) * | 1998-10-23 | 2000-12-26 | Dahlin; William G. | Railcar cleaning method and apparatus |
| CN103712225A (en) * | 2013-12-13 | 2014-04-09 | 山西蓝天环保设备有限公司 | Coal pulverizing system applied to small-and medium-sized pulverized-coal industry boilers |
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